VERITAS Storage Foundation 4.1 Oracle Administrator's Guide

Chapter 2, Setting Up Databases

Prerelease 8 September 2005, 8:54am Resizing a File System

Resizing a File System and the Underlying Volume

The vxresize command offers the advantage of automatically resizing certain types of file

systems as well as the underlying volume.

Prerequisites

◆ You must know the new desired size of the file system.

◆ In some situations, you must first unmount the file system before resizing it. The following

table shows which operations are permitted and whether the file system must first be

unmounted before resizing it:

Usage Notes

◆ vxresize works with VxFS, JFS (derived from VxFS), and HFS file systems only.

◆ When resizing large volumes, vxresize may take a long time to complete.

◆ Resizing a volume with a usage type other than FSGEN or RAID5 can result in data loss. If

such an operation is required, use the -f option to forcibly resize such a volume.

◆ You cannot resize a volume that contains plexes with different layout types.

◆ See the vxresize(1M) manual page for more details.

Example

To extend a 1-gigabyte volume, homevol, that contains a VxFS file system, to 10 gigabytes,

enter:

# /etc/vx/bin/vxresize -b -F vxfs -t homevolresize homevol 10g

The -b option specifies that this operation runs in the background. Its progress can be monitored

by specifying the task tag homevolresize to the vxtask command.

Online JFS

(Full VxFS)

Base JFS

(Lite VxFS)

HFS

Mounted File System Grow and shrink Not allowed Not allowed

Unmounted File System Grow only Grow only Grow only